147results about "Automatic/semiautomatic turning machines" patented technology

To provide a machine tool and a control method of the machine tool, which automatically adjust a gap between a rotary guide bush and a bar material in the case of a structure in which an opening of the rotary guide bush is adjusted by an adjusting nut and the rotary guide bush synchronously rotates with a front face main spindle.SOLUTION: A rotary guide bush 140 includes an adjusting nut 145 which adjusts a size of a gap by rotating a guide bush body 144 when adjusting a gap between a bar material W and the guide bush body 144 and is screwed with the guide bush body 144. A control device 180 includes a guide bush opening determination section 181b which determines adjustment amount of the gap on the basis of a rotation angle of a front face main spindle 120 when rotating a back face main spindle 160 in a state that the back face main spindle 160 is held by the bar material W and a front face main spindle driving motor 123 is not excited.SELECTED DRAWING: Figure 1

According to the hydraulic auxiliary supporting device of the numerical control heavy horizontal lathe and the adjusting method of the hydraulic auxiliary supporting device, a cooperative work system is formed by arranging a hydraulic supporting assembly and a cross-three-guide-rail balance structure of a supporting plate assembly, and the cross-three-guide-rail balance structure of the supporting plate assembly is used for supporting the supporting plate assembly by increasing the supporting area, lengthening a force arm and optimizing a positioning and guiding structure; the bearing capacity, the rigidity and the movement precision of the machine tool are improved from the mechanical structure level; according to the hydraulic supporting assembly, through the combined design of hydraulic proportional adjustment and hydraulic supporting disc spring pre-tightening, self-adaptive adjustment of loads and gaps is achieved, cutting vibration is effectively absorbed, overturning moment is offset, and the defect of a mechanical structure in the dynamic load adaptation aspect is overcome; when the supporting plate assembly and the hydraulic supporting assembly work cooperatively, the supporting plate assembly provides a stable stress foundation for the hydraulic supporting assembly, the hydraulic supporting assembly conducts precise compensation for dynamic load changes, the double advantages of static rigidity guarantee and dynamic load adaptation are formed, the overall performance of the machine tool is remarkably improved, and the requirements for high-precision and high-efficiency machining of heavy and extra-heavy workpieces are met.

The invention relates to a multi-station numerical control lathe, and belongs to the technical field of numerical control lathes, the multi-station numerical control lathe comprises a lathe workbench and a plurality of multi-station power tool turrets, and further comprises a guide rail, a sliding seat, a rotating seat, a first driving part, a second driving part and a third driving part, the length direction of the guide rails is parallel to the length direction of a clamped workpiece, the guide rails correspond to the multi-station power tool turrets one to one, the multiple guide rails are located on the same side of the workpiece, the sliding seats correspond to the guide rails one to one, and the sliding seats are arranged on the corresponding guide rails in a sliding mode. The rotating seat on the guide rail close to one side of the workpiece is arranged on the corresponding sliding seat, the rotating seat on the guide rail far away from one side of the workpiece is rotationally arranged on the corresponding sliding seat in the vertical direction, and the multi-station power tool turret is arranged on the rotating seat of the corresponding guide rail in a sliding mode. The multi-station power tool turret machining device has the advantages that machining flexibility is improved, and the multiple multi-station power tool turrets are fully utilized.

The invention belongs to the technical field of intelligent manufacturing equipment, and particularly relates to a multifunctional intelligent multi-spindle numerical control lathe which comprises a lathe base, a first spindle, a second spindle, a machining mechanism and a feeding and discharging mechanism. The first main shaft and the second main shaft capable of being adjusted in the axial direction cooperatively clamp and drive a product to rotate, and the machining mechanism completes machining operation such as turning and boring. The feeding and discharging mechanism comprises a driving mechanism, a lifting piece, a force sensor, a sliding rod and a supporting piece, and the state change of the supporting piece is achieved through switching of different telescopic lengths of the driving mechanism. When the first telescopic length is reached, the supporting piece obliquely discharges chips; the to-be-machined part is stably supported and aligned with the main shaft at the second telescopic length; the third telescopic length facilitates feeding and discharging. The force sensor detects the weight of the product in the lifting process and records the machining loss and the qualification condition. The lathe achieves auxiliary feeding and discharging, scrap collection and weight detection, manpower consumption and operation difficulty are reduced, safety and machining efficiency are improved, and practicability is high.

The machine tool includes: a first spindle that includes a collet chuck that grips a workpiece; a first headstock that rotatably supports the first spindle; an air cylinder that generates a driving force for changing a state of the collet chuck between a gripping state for gripping the workpiece and a release state for releasing the grip of the workpiece; a non-rotary transmitting member that transmits the driving force received from the air cylinder; a rotary transmitting member that rotates together the first spindle and transmits to the collet chuck the driving force received from the non-rotary transmitting member; strain detection means that is attached to the non-rotary transmitting member and detects a strain of the non-rotary transmitting member produced when the driving force is transmitted from the air cylinder to the collet chuck, and a deriving unit that derives the gripping force of the collet chuck based on a detection result of the strain detection means.

A tooling assembly for a lathe machine includes a tool platform configured to be mounted on the lathe machine, a milling tool holder fixedly secured to the tool platform and workable to releasably secure a thread milling tool therein, and a milling tool drive. The milling tool drive is operatively connected to the milling tool holder and operable to rotate the milling tool holder independently of a work holder to mill threads on the workpiece when a pipe thread milling tool is secured in the milling tool holder. Computer numerical control threading lathes and methods of milling threads in tubular workpieces are also described.

A turning method includes driving a first movement apparatus to locate a cutting edge of a turning tool at a first radial position; driving a second movement apparatus to move the turning tool in an axial direction to perform first turning with the cutting edge at the first radial position; driving the second movement apparatus to move the turning tool away from a workpiece in the axial direction after performing the first turning; calculating an error between the processed dimension and a target dimension; driving a third movement apparatus, which is configured to move the turning tool relative to the first movement apparatus in a radial direction, to locate the cutting edge of the turning tool at a second radial position to correct the error; and driving the second movement apparatus to move the turning tool in the axial direction to perform second turning at the second radial position.

A horizontal machining center with a shock-absorbing braking mechanism, comprising a lathe body (1) including a lathe bed (102), a chuck (103), a spindle housing (104), and a slide housing (105). The lathe bed (102) is equipped with a guide rail (108), and the slide housing (105) is equipped with a tool holder assembly (106). One end of the inner shaft (201) near the chuck (103) is provided with a brake disc (203), and the spindle housing (104) is provided with a spindle braking device (5) comprising a first (6) and a second braking device (7) arranged symmetrically on either side of the brake disc (203) and a return device (8) located between the two. (Shortcut figure: Figure 1)

This invention belongs to the field of turning technology, specifically a narrow-pitch vertical multi-spindle CNC lathe for shafts and its usage method. Addressing the lack of corresponding protective devices during part machining in existing technologies, and the problem of the cutting head not rotating when machining grooves on shaft workpieces, the lathe includes a support box with a collection box slidably connected inside. One side of the collection box extends to the outside of the support box. Multiple second unloading holes are evenly spaced on the top inner wall of the support box. After clamping and positioning the workpiece, this invention allows the workpiece to be machined in a relatively enclosed space, preventing waste chips from flying everywhere. Furthermore, during machining, the cutting head can be driven to rotate, reducing pressure on the workpiece and preventing deformation when machining grooves on shaft workpieces.

In order to configure a multi-spindle machine tool comprising a machine frame, a spindle drum arranged on the machine frame to be rotatable about a spindle drum axis and having a plurality of workpiece spindles, each of which is provided with a workpiece receptacle for a workpiece that is to be machined in a working area, a plurality of tool carriers arranged in the working area, in particular associated with individual spindle stations, and each having a tool holder receptacle into which a tool holder is insertable, as well as a machine control system for controlling the machine tool to be more efficient, it is proposed that a handling apparatus is arranged on the machine frame, that with the handling device, also controlled by the machine control system, at least one tool holder is insertable into at least one of the tool holder receptacles and / or removable therefrom.

The utility model discloses a turning and milling all-in-one machine which comprises a lathe which comprises a chuck, a working table, a first driving assembly and a turning tool, the chuck is used for clamping a workpiece and driving the workpiece to rotate above the working table, and the first driving assembly is connected with the turning tool and drives the turning tool to move in the X-axis direction and the Z-axis direction of the working table. The feeding amount of the workpiece is adjusted, and the outer peripheral wall is cut; the milling assembly is connected to the workbench and comprises a second driving assembly, a first main shaft arranged on the X axis and a second main shaft arranged on the Z axis, the second driving assembly is connected with the first main shaft and the second main shaft and drives the first main shaft and the second main shaft to move in the Y-axis direction of the workbench, and one of the first main shaft and the second main shaft is used for milling the workpiece. The milling assembly is integrated on a traditional lathe, the original turning function is reserved, the milling capacity is expanded, two different types of machining including turning and milling are conducted on the same device at the same time, the machining efficiency and flexibility are greatly improved, and the production cost is reduced.

The invention discloses a high-precision numerical control turning and milling composite lathe, and relates to the technical field of lathes, the high-precision numerical control turning and milling composite lathe comprises a base, a machining unit is arranged at the rear end of the top of the base, a positioning table is further fixedly mounted at the top of the base, a fixing groove is formed in the top of the positioning table, and a guide plate is rotatably arranged in the fixing groove; a telescopic rod and a first spring are arranged between the guide plate and the inner side wall of the fixing groove, and two limiting plates are symmetrically arranged at the end of the top of the guide plate. When the gravity of metal chippings falling on the top of a guide plate is larger than the supporting force of a telescopic rod, one end of the guide plate can rotate downwards at the moment, the metal chippings can slide out along the guide plate, in the process, due to the fact that the guide plate is in an inclined state, a scraper can slide on the guide plate, and the metal chippings can be scraped out. And therefore, the scraping plate can drive the chippings adhered to the surface of the guide plate to actively slide out of the guide plate, the cleaning effect on the guide plate is improved, and the chipping cleaning precision on the guide plate is also improved.

The invention relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool with a rapid clamping and limiting function, which comprises a numerical control machine tool body, a three-jaw automatic chuck, a driving motor and the like, the three-jaw automatic chuck is rotatably connected in the numerical control machine tool body, and the driving motor is mounted in the numerical control machine tool body; an output shaft of the driving motor and the three-jaw automatic chuck are in transmission through a transmission gear. The lead screw motor can drive the limiting spline shaft to move left and right, the limiting distance of the limiting spline shaft is adjusted, a workpiece can be pushed leftwards through the push plate, the workpiece makes contact with the right end of the limiting spline shaft, the limiting spline shaft limits the workpiece, the workpiece is automatically clamped and limited, the position of the limiting spline shaft does not need to be frequently adjusted, and the machining efficiency is improved. And the workload of workers can be reduced, and the working efficiency is improved.

A machine tool has a spindle device having a through-hole extending in an axial direction along a rotation axis, a tubular shaft movable in the axial direction through the through-hole, and a workpiece support body configured to be detachable with respect to one end of the through-hole and to support a workpiece so as to be movable in the axial direction, the tubular shaft having a first end toward the one end of the through-hole and a second end opposite to the first end in the axial direction, the workpiece support body being detachable from the one end and a probe being mountable to the first end.

A method for steady-state control of cutting state, implemented based on computer numerical control (CNC) machine tools or cutting lathes. The method comprises: fitting parameters of a stored energy evolution model of a workpiece material to be machined; discretizing primary shear zone into multiple infinitesimals along normal direction of main shear plane; introducing equivalent cutting edge model, inputting pre-used cutting parameters, calculating strain and strain rate of each infinitesimal and analyzing temperature of each infinitesimal; deducing and solving differential equation of each infinitesimal of stored energy to position of the primary shear zone by taking initial shear plane of the primary shear zone as model boundary; determining application values of cutting parameters according to solved results; and, controlling and adjusting the cutting tool in the actual cutting process to cut the workpiece material to be machined with the application values.

The utility model relates to the technical field of multi-head vertical lathes, in particular to a multi-head vertical numerical control lathe which comprises a multi-head lathe body, a frame used for supporting is assembled on the surface of the outer wall of the multi-head lathe body, a frame hopper used for guiding materials is installed in the frame in a sliding mode, and a scale body used for measuring is assembled between the frame hopper and the frame. A conveying belt used for guiding materials is assembled on the inner side of the frame hopper. In the using process of the multi-head vertical numerical control lathe, chippings generated during workpiece machining can fall into the frame hopper in the frame and can be guided by the frame hopper to be accumulated on the surface of the conveying belt, and then the scale body between the frame and the frame hopper can weigh the chippings on the frame hopper and the conveying belt. And when the set weight is achieved, the conveying belt can operate, accumulated chippings can be conveyed and discharged, and therefore resources consumed by continuous operation of the conveying belt are reduced.

The utility model discloses a double turret synchronous turning mechanism, relates to turning mechanism technical field, including base, the upper surface of base is fixedly connected with mounting plate, one side of mounting plate is rotatingly connected with clamping jaw, one end of clamping jaw clamps work piece, the upper surface of base is fixedly connected with electric slide rail, and the electric slide rail is fixed on the mounting plate. And a sliding block is arranged on the surface of the electric sliding rail, a supporting column is fixedly connected to the upper surface of the sliding block, a groove is formed in one side of the supporting column, and a first cutting knife is inserted into the groove. The transverse distance between the two cutters is adjusted through the electric sliding rail, the first cutter and the second cutter can machine different parts of a workpiece at the same time, such as one-end trepanning and surface finishing, frequent cutter changing and step-by-step machining of a traditional single-cutter tower machine tool are avoided, auxiliary time is greatly shortened, multi-procedure synchronous operation is achieved, the machining period is shortened, and the machining efficiency is improved. The production cost is reduced.

In a case where the opening degree of the rotary guide bush is adjusted by an adjusting nut and the rotary guide bush rotates synchronously with the front spindle, a machine tool and a method for controlling the machine tool, in which the gap between the rotary guide bush and the bar is automatically adjusted, are provided. The rotary guide bush 140 includes an adjusting nut 145 that, when adjusting a gap between the bar W and the guide bush main body 144, rotates the guide bush main body 144 to adjust size of the gap and is screwed with the guide bush main body 144, and the control device 180 includes a guide bush opening degree determining section 181b that determines an adjustment amount of the gap based on a rotation angle of the front spindle 120 when rotating the back spindle 160 in a state where the bar W is held by the back spindle 160 and the front spindle drive motor 123 is not excited.

Support and machining method for a bipolar plate of an electrolyzer stack. The present invention relates to the construction of certain parts of an electrolyzer stack and a tool intended to support such parts during their machining. The tool according to the present invention is characterized by the presence of a double-plate support thanks to which it is possible to avoid having to turn the blank during machining. Figure for the abstract: 4

The invention relates to the technical field of machine tool machining, in particular to a three-spindle three-tool-magazine linkage machining device which comprises a base, a workbench capable of moving in the X-axis direction and the Y-axis direction is arranged on the base, a fixing frame is fixedly installed on the workbench, and sliding frames which are in sliding connection with the workbench and can be adjusted at equal intervals are arranged at the two ends of the fixing frame respectively. One end of the fixed frame and one end of the sliding frame are each fixedly provided with a first mounting plate, the other end of the fixed frame and the other end of the sliding frame are each slidably provided with a second mounting plate, and the first mounting plates and the second mounting plates are each provided with a cylindrical component capable of being automatically adjusted and attached according to the shape of a product. The problems that in the prior art, an existing rigid clamping device is small in contact area with a workpiece, pressure is concentrated, indentations are likely to be generated on the surface of the workpiece, meanwhile, for a special-shaped workpiece, a traditional clamp is difficult to achieve comprehensive attaching and fixing, the workpiece is likely to shift in the machining process, and the machining precision is affected are effectively solved.

To provide a machine tool that can determine the gripping force of the gripping part with high precision using an inexpensive configuration. [Solution] The system comprises a first spindle 4 having a collet chuck 41 for gripping a workpiece W1, a first headstock 3 that rotatably supports the first spindle 4, an air cylinder 33 that generates a driving force to change the state of the collet chuck 41 between a gripping state for gripping the workpiece W1 and a release state for releasing the workpiece W1, a non-rotating transmission member 34 that transmits the driving force received from the air cylinder 33, a rotating transmission member 45 that rotates together with the first spindle 4 and transmits the driving force received from the non-rotating transmission member 34 to the collet chuck 41, a strain detection means 46 attached to the non-rotating transmission member 34 that detects the strain of the non-rotating transmission member 34 that occurs when the driving force is transmitted from the air cylinder 33 to the collet chuck 41, and a derivation unit 23 that derives the gripping force of the collet chuck 41 based on the detection result of the strain detection means 46.

A machine tool control device according to one aspect of the present disclosure, which can prevent a workpiece from flying out, comprises: a total turning inertia estimation unit that, estimates the total turning inertia on the basis of feedback from a turning shaft by causing the turning shaft to rotate, said total turning inertia being the total inertia, around the turning shaft, of the turning shaft and an object that rotates together with the turning shaft; a workpiece turning inertia estimation unit that estimates the workpiece turning inertia on the basis of the total turning inertia when a retention unit is not retaining a workpiece and the total turning inertia when the retention unit is retaining a workpiece, said workpiece turning inertia being the inertia, around the turning shaft, of the workpiece; a maximum rotational speed calculation unit that, on the basis of the workpiece turning inertia, calculates the maximum rotational speed of the turning shaft, at which the maximum energy when the workpiece separates from the retention unit is equal to a preset upper limit value; and a rotational speed limiting unit that limits the rotational speed of the turning shaft so as not to exceed the maximum rotational speed.

To manufacture a roll mold in which a predetermined cut place is precisely cut a plurality of times, and a cut hole having a predetermined depth is formed.SOLUTION: A roll mold manufacturing apparatus 10 includes: a signal generation part 15 for generating a control waveform reciprocating a cutting blade 12 in a radial direction of a roll 1 at a position corresponding to a predetermined cut place on the surface of the roll 1, on the basis of a signal output from a rotary encoder 11a; and a control part 16 for reciprocating the cutting blade 12 in the radial direction of the roll according to the control waveform, and moving a stage 14 for a cutting tool in the radial direction of the roll 1 so that a cutting step of cutting the cut place at a predetermined cut depth one or a plurality of times is performed a plurality of times. The control part 16 moves the stage 14 for the cutting tool in the radial direction of the roll 1 so that the cut depth in the cutting step is smaller than the cut depth in a last cutting step. The signal generation part 15 generates a control waveform so that at least one of arrangement and a depth of the plurality of cutting holes becomes random.SELECTED DRAWING: Figure 1

The invention relates to a bench and vacuum suction cups for a machining centre, which provide means for holding materials such as stony, ceramic or glass materials for the machining thereof. For this purpose, vacuum suction cups are used in combination with a flat bench without projections, dispensing with the connections and tubes of conventional suction cups. The invention is intended for the industry concerning the manufacture of machining centres and applicators thereof.

A control method of superimposition processing in an NC machine tool comprises providing at least one tool rest that performs machine processing to workpieces respectively held on a plurality of spindles, providing respective processing programs for performing respective machine processing to the workpieces held on the respective spindles, and inserting superimposition control program for performing superimposition processing during one of the respective processing programs is running. The superimposition processing is performed so that, during an operation of performing machine processing to a workpiece held on one of the plurality of spindles by one of the plurality of tools, the other operation of performing machine processing to a workpiece held on another one of the plurality of spindles by another one of the plurality of tools is superimposed.

Provided is a technology for addressing thermal expansion in a way that is different from conventional methods during additive manufacturing on a workpiece. An additive manufacturing apparatus includes a laser head configured to perform additive manufacturing on a workpiece, a first support unit configured to support one side of the workpiece in a direction along a predetermined axis and rotatably support the workpiece with respect to the predetermined axis, a second support unit configured to support the other side of the workpiece in the direction along the predetermined axis and rotatably support the workpiece with respect to the predetermined axis, a drive unit configured to move the second support unit along the direction along the predetermined axis, a first detection unit configured to detect a physical quantity correlated with torque applied to the drive unit, and a control unit. The control unit executes a process of controlling the drive unit during at least one of additive manufacturing on the workpiece and cooling of the workpiece such that the physical quantity detected by the first detection unit approaches a predetermined target value.

The present invention provides a processing apparatus capable of efficiently performing cutting and heat treatment such as quenching on a workpiece. The processing apparatus includes: a support mechanism (10) for supporting a workpiece; a cutting mechanism (30) for cutting the workpiece (W) supported by the support mechanism (10); and a heat treatment mechanism (50) for heat treating the workpiece (W) supported by the support mechanism (10), the heat treatment mechanism (50) having a coil portion (51) for induction heating of the workpiece (W), the coil portion (51) being movable relative to the workpiece (W) supported by the support mechanism (10).

The utility model provides a novel numerical control lathe, and belongs to the technical field of machining equipment. The problems that waste chips of an existing lathe are inconvenient to clean and cannot be observed in time are solved. The novel numerical control lathe comprises a lathe body, a clamping jaw structure and a tool rest unit, the lathe body is further provided with a driving assembly used for driving the tool rest unit to move back and forth in the axial direction, the driving assembly is composed of a lead screw unit and two sliding rail units, and the two sliding rail units are symmetrically arranged on the upper end face of the lathe body; the tool rest unit is arranged on the two sliding rail units and is in sliding fit with the sliding rail units, the side wall, located at the lead screw unit, of the machine tool body is provided with a protection unit which is connected with the machine tool body, used for protecting the lead screw unit and capable of observing the lead screw unit, and the side wall of the machine tool body is provided with a storage cavity. A discharging strip groove facilitating discharging of waste chips into the storage cavity is formed in the upper end face, located between the two sliding rail units, of the machine tool body. The device has the advantages of being convenient to clean and observe.